Timepiece



s. R. W-iLMOT.

Clock Case.

Patented June 22, 1852.

N. PEYERS. Phoflrljlhogmpllln Willhinglnn. D, a

UNITED STATES PATENT OFFICE.

S. R. WILMOT, OF NEW HAVEN, CONNECTICUT.

TIMEPIECE.

Specification of Letters Patent No. 9,062, dated June 22, 1852.

To all whom it may concern:

Be it known that I, S. R. IVILnor, of the city and county of New Haven, in the State of Connecticut, have invented a new and useful Improvement in Hanging Clocks in Cases for the Reduction of Sound; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawing, forming part of this specification, in which Figure l, is a front or face view of the interior of an ordinary marine clock, omitting, or exhibiting only in part or outline, the operating mechanism thereof. Fig.

2, is a transverse section taken through the line 0 C Fig. l and showing mainly only such parts as are connected with my improvement.

Like letters of reference denote like parts in both figures.

The nature of my invention consists in connecting the corners or pillars of the clock-frame to the sides or thickest parts of the case thereby forming the junction of the said frame and case at or between their most solid parts; and my invention further con sists in so applying india-rubber or its equivalent as to interrupt all communication of solid matter between the clock and its case.

For the benefit of others whom it may concern I will proceed fully to describe my invention.

A is the octagonal or other shaped clockcase the sides of which as usual are made considerably thicker than the back a.

B and C are the outer and inner pieces forming, when united by the pillars b b, the ordinary clock frame for supporting and including the mechanism of the clock about which I claim nothing new, that represented in the drawing being as before specified the well known marine clock. A great objection to these clocks and others to which my invention is applicable is the noise or sound of their working which I propose to largely reduce or nearly overcome by wholly insulating as it were the clock from its case in the following manner. I employ no screws or other hard fastenings (which conduct sound) for holding the clock-frame to the case but break all connection of solid matter (so as to destroy the transmission of vibration) between those parts by introducing indiarubber or other non-conducting (as regards sound) packings c c at the corners of the clock frame and against the pillars b b, the said packings separating the clock at its most solid parts, viz., the specified corners, from the case at its thickest or most solid portions which, as before observed, are the sides.

To support the clock tight in its case (the inner piece C not being joined to the back a) and to insulate wholly, by the indiarubber or similar packing, the clock from contact with the case, I adopt a tighteningup india-rubber packing (Z bearing against one end of either piece 13, C, and having a presser 6 between which and the case a wedge f is driven for holding the clock tight in the case. Thus the clock is wholly insulated by non-conducting packing in the most perfect manner, as the connection of the frame at its corners or pillars b b, where the frame is stiflest, with the sides or most solid portions of the case, reduces largely the transmission of the vibration, and therefore this mode of connection, as compared with attaching the clock to the back-board or thinnest portion of the case, tends in itself to reduce the sound which is almost destroyed by the introduction of the indiarubber packing insulating the clock from the case as specified. I

Vhat I claim as my invention and desire to secure by Letters Patent, is

Insulating or separating the clock-frame from all contact with the case by intermediate packings of india-rubber, or other non-conductor of sound, substantially as shown and set forth.

In testimony whereof I have hereunto signed my name before two subscribing witnesses.

S. R; WILMOT. WVitnesses:

ALFD. GREGORY, A. E. H. JOHNSON. 

